Good grief so it is. Couldn't see it there. Normally I see a link at the top that takes me to any new/latest posts.
I haven't personally touched anything - but Dave or someone else may have updated the forum software to the latest version. The text on the front page which reads 'View New Posts' or whatever it used to say is generated by the forum - and so if this has been changed /removed in the forum software, it will have changed the front page message too.
Until it's fixed, clicking '### Messages' on the front page at the top will still take you through to the forums - but your inbox, and not the latest posts page.